<title>Abstract</title> <bold>Objective: </bold>To investigate the causative factors, antimicrobial resistance patterns, and associated risk factors of postoperative incisional infections in patients with acute intestinal obstruction to develop a predictive model. <bold>Methods: </bold>A retrospective study was conducted on (n=329) admitted Emergency Surgery Department First Affiliated Hospital Anhui Medical University between January 1,2020, December 31,2022. Patients were included based...

Nonvolatile control over the physical state of polar materials through all-optical methods has been a long-standing objective pursued in optoelectronics. Photoferroelectric semiconductors exhibit immense potential capturing multimodal nonvolatile states, attributed to their spontaneous and reversible in-plane out-of-plane polarizations. Herein, we uncover an unprecedented nonvolatile, zero-bias, ultrafast photocurrent hysteresis response with innovative approach, discerned by analyzing...

Liquid metal CPS (capillary porous system) is a promising plasma facing component material, offering potential solutions to the safety challenges posed by high heat flux and high-speed particle impacts on components such as first wall divertor in Tokamak nuclear fusion devices. In this paper, flow behavior of liquid was reproduced using Galinstan copper foam materials. The experiment investigated characteristics capillary channels under strong magnetic fields, including variation surface...

Photocurrent induced by nonlinear optical effects has innovated fundamental optic physics in optoelectronic devices, including photodetectors, absorbers, and solar cells. The cooperative interaction between different kinds of photocurrents would be a complex yet interesting issue. Herein, we have prepared tellurium (Te) nanotube films to study the transient photocurrent utilizing terahertz (THz) emission spectroscopy excited femtosecond pulse laser. THz wave is generated from interplay...

Coherent polarization control of terahertz (THz) wave radiation in both the time-domain and frequency-domain is significant information technology, material science, spectroscopic analysis. Elliptically polarized THz generally limited to chiral materials induced by circularly light excitation. Herein, we demonstrate coherent elliptically from few-layer tungsten diselenide (WSe2) under linearly femtosecond laser This elliptical mainly dominated in-plane anisotropic shift current out-of-plane...

Triboelectric nanogenerators were fabricated using organic semiconductor CuPc. With 10 wt% iodine doping, the devices showed an excellent performance with a voltage output of 300 V, current density 110 mA m −2 , and power 8.68 W .

Surface nonlinear optical response of layered tin disulfide (SnS2) is investigated by terahertz (THz) emission spectroscopy using a femtosecond photoexcitation at 400 nm. Under above-bandgap excitation, we distinguish the surface rectification, electric field (SEF)-induced and SEF-induced drift photocurrent. The pump fluence dependence THz demonstrates saturation effect due to electrostatic screening high photocarrier density on surface. Theoretical calculations suggest that rectification...

Cocrystallization has been applied widely for material synthesis. Recently cocrystal of organic molecules developing rapidly, taking the advantages flexibility and self-assembly molecules. Here we report an experimental study a copper-phthalocyanines fluorinated ones. We have grown samples via vapor-phase deposition mixture with different mass ratios from 1:13.5 to 6:1. As suggested by our scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, new crystal structures...

Palladium diselenide (PdSe2) exhibits air stability, low symmetry, and high carrier mobility, resulting in unique in-plane anisotropy for polarized optoelectronic devices. However, the relationship of symmetry terahertz (THz) radiation remains elusive yet significant both THz source technology nonlinear optical physics science. Herein, we observed large anisotropic from multilayer PdSe2 under femtosecond laser excitation. The emission demonstrates 2α dependence on polarization angle resonant...

Abstract Recently, spin-bearing molecules have been experimentally demonstrated to great potential as building blocks for quantum information processing due their substantial advantages including tunability, portability, and scalability. Here, we propose a theoretical model based on the theory of open systems spin dynamics in molecule containing one radical, which can interact with triplet state arising from another part owing optical excitation intersystem crossing. With initial being...

The photon-electron interactions are generally volatile and the intricate multiphysics details of photoexcited carrier dynamics not yet distinguished. How to nonvolatile control physical state through all-optical means clarify processes has been a long-term goal pursued in polar materials. Photoferroelectric {\alpha}-In2Se3 holds great potential for capturing multimodal states due spontaneous reversible in-plane out-of-plane polarizations its tunable light-matter arising from electronic...

Crosstalk between adjacent views, lens aberrations, and low spatial resolution in light field displays limit the quality of 3D images. In present study, we introduce a display performance optimization method for based on neural network. The pre-corrects encoded image from global perspective, which means that is pre-corrected according to results. network consists two parts: pre-correction former realizes original (OEI), while latter completes modeling unit generation viewpoint images (VIs)....

To develop and validate a nomogram model for discriminating simple intestinal obstruction strangulated obstruction, thus providing objective evidence clinical decision-making. Following pre-established inclusion exclusion criteria, retrospective analysis was conducted on the data of 560 patients diagnosed with who were admitted to Emergency Surgery Department First Affiliated Hospital Anhui Medical University between January 1, 2020, December 31, 2022. The subsequently split into training...

In order to achieve rapid laser spot alignment for communication, this paper proposes a center algorithm that combines coarse positioning and fine aiming, based on the concept of segmented control. The optimizes image filtering process by analyzing actual characteristics spot, considering requirements fast scanning speed aiming accuracy. Adaptive median adaptive threshold segmentation are utilized obtain with uniform brightness distribution. is theoretically experimentally demonstrated...

Studying optical properties of organic materials is important due to the rapid development light-emitting diodes, solar cells, and photon detectors. Here for first time we have performed tight-binding calculations singlet excitons, in combination with first-principles excited states molecular dimers, describe a zinc-phthalocyanine one-dimensional chain. We included intra-molecule charge-transfer excitations coupling between them. Our successfully interpreted body experimental UV-Vis spectra...

In order to address the realtime performance and robustness issues in UAV aerial image stitching, an improved SURF-based algorithm is proposed. This enhances stitching process for images by first employing Speeded-Up Robust Features SURF rapid robust feature point detection localization. Subsequently, binary BRISK descriptors are used description. matching phase, initial coarse performed using Nearest-Neighbor Distance Ratio NNDR filter out correct match pairs. Then, precise achieved through...

Two-dimensional/ three-dimensional (2D/3D) van der Waals (vdW) heterostructures are one of the most potential candidates for table-top pulse terahertz (THz) emitters. Hence, manipulating carrier information at interface is important to optimize THz emission performance. Photoinduced doping an effective way embellish characteristic interface. Here, we applied photoinduced effect dynamically manipulate generation process from graphene-silicon (Gr-Si) heterostructure. When by using 532 nm...

We report the optical response of layered bulk and monolayer SnS₂ at surface. The physical mechanism for terahertz (THz) emission in has been proposed. At 40° incident angle, drift current accompanied by surface nonlinear polarization concurrently contribute to THz SnS_2. radiation SnS₂is mainly attributed photocurrent, which is insensitive crystalline symmetry pump direction. corresponding investigation could not only help clarify relationship...